<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
	<%
		String username = request.getParameter("user");
		if (username != null) {
			session.setAttribute("usersession", username);
			application.setAttribute("userapp", username);
		}
	%>
	Username by Request:
	<%=username%><br /> Username by Session:
	<%=session.getAttribute("usersession")%><br /> Username by
	Application(ServletContext):
	<%=application.getAttribute("userapp")%><br />

	<%-- Tìm hiểu pagecontext --%>
	<b><i>Tìm hiểu pagecontext</i></b>
</body>
</html>